US Patent: D27,824 - Pump Wrench


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US Patent: D27,824

Pump Wrench

Patentee:

Oscar P. Trahern (exact or similar names) - Rockford, IL

USPTO Classifications:

D8/28

Tool Categories:

wrenches : auxiliary wrenches

Assignees:

None

Manufacturer:

Trahern Pump Company - Rockford, IL

Witnesses:

Patent Dates:
Applied:	Sep. 17, 1897
Granted:	Nov. 09, 1897

Patent Pictures:

Oscar P. Trahern design patent Nov. 9, 1897

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Description:

Design to fit two sizes of hexagon. P.T. Rathbone's "History of the Old Time Farm Implement Companies and the Wrenches They Issued" shows an example of the O.P. Trahern pump wrench.

Term of patent 3 1/2 years.